The instant before a batter hits a .14 KG baseball, the velocity of the ball is 45 meters per second west. The instant after the batter hits the ball, the ball's velocity is 35 meters per second eat. The bat and ball are in contact for 1.0 x 10 ^-2 second.
How do I determine the magnitude and direction of the average acceleration of the baseball while it is in contact with the bat?

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